1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Disc Brakes
  5. Channel Only
  6. 8000 lbs GTW
Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs

Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs

Item # DM8759422
lowest price pledge
Our Price: $240.57
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 35 lbs
Quantity: 
In Stock
Demco Surge Brake Actuator - DM8759422
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on. Call 800-298-1624 to order Demco brake actuator part number DM8759422 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (1)
  • Q & A (8)
  • Photos
  • Why etrailer?

Demco Brake Actuator - DM8759422

  • Surge Brake Actuator
  • Disc Brakes
  • Channel Only
  • 8000 lbs GTW
  • Bolt-On
  • Weld-On
  • Electric Lockout
  • Straight Tongue Coupler
  • Demco

Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Electric reverse lockout lets you back up without actuating trailer brakes
    • Solenoid activates automatically when you shift into reverse
  • Adjustable channel has 3 different mounting positions for coupler (sold separately)
  • Composite master cylinder is durable and efficient
    • Glass-reinforced nylon construction resists rust and corrosion
    • Large reservoir provides increased capacity for brake fluid
    • Automotive-style diaphragm cap creates completely enclosed system to help prevent contamination of fluid
  • Acetal copolymer lining provides smooth operation as actuator telescopes in and out
  • Breakaway included
  • Heavy-duty steel construction
  • Primed finish
  • Bolt-on or weld-on installation
    • Requires 1/2" x 4-1/2" Grade-5 bolts (not included) for bolt-on mounting
  • Made in the USA


Specs:

  • Application: trailers with hydraulic disc brakes
  • Gross towing weight: 8,000 lbs
  • Maximum tongue weight: 800 lbs
  • Channel width: approximately 3"
  • Channel height: 8"
  • Mounting: straight, 3" wide trailer tongue
  • Model number: DA91
  • 1-Year warranty


When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.


Electric Reverse Lockout

The electric reverse lockout on this trailer brake actuator is automatically activated when you shift your tow vehicle into reverse. The solenoid wires into your trailer connector - which connects to your tow vehicle - so that it can detect when you are in reverse. When your vehicle is in reverse, the solenoid ensures that the hydraulic actuator does not activate your trailer's brakes, thus allowing you to back up your rig. To use the lockout feature, you must have a 5-pole flat, 6-way round, or 7-pole trailer connector.


Adjustable Channel Design

The adjustable channel on this trailer brake actuator allows for ultimate versatility. Mount almost any type of coupler (sold separately) - from a standard ball coupler to a lunette ring or clevis attachment - to fit your specific application. In addition, the 3 mounting positions on the channel let you adjust the height of the coupler. Just place the coupler so that it matches the height of the ball mount or other hitch attachment on your tow vehicle and you will be able to tow your trailer levelly.



8759422 Demco DA91 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - Channel Center - 8,000 lbs






Customer Reviews

Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs - DM8759422

Average Customer Rating:  4.0 out of 5 stars   (1 Customer Reviews)

Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on.

- DM8759422
by:

I received the coupler on time but was missing the reverse solenoid. My installation was a little unique do to replacing a super short Atwood unit. I also had to modify the channel as well, you may not have to for your application.


1
1

Ask the Experts about this Demco Brake Actuator

Do you have a question about this Brake Actuator?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality brake actuator for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate brake actuator information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.